Index = function(){
	var library;
	var index;
	
	//getterAndSetter
	Index.prototype.getLibrary = function(){
		return library;
	}
	Index.prototype.setLibrary = function(someLibrary){
		library = someLibrary;
	}
	Index.prototype.getIndex = function(){
		return index;
	}
	Index.prototype.setIndex = function(someIndex){
		index = someIndex;
	}
	
}

//constructor
Index.prototype.initialize = function(aLibrary,anIndex){
	this.setLibrary(aLibrary);
	this.setIndex(anIndex);
}